Daikin VRV III REYQ8PY1, Service Manual

Page: 168 / 452

Si37-701 Test Operation
Test Operation 157
[How to Check How Many Units are Connected]
It is possible to find out how many indoor or outdoor unit in the system are turned on by
operating the push button on the PC-board (A1P) of outdoor unit (In case of multi system
master unit).
Follow the procedure below to check how many indoor or outdoor units are turned on.
Note:
Press the “MODE button” (BS1) if you get confused while operating.
This returns to
Setting Mode 1 (H1P: OFF, default).
(LED display:
h
...OFF
k
...ON
l
...Blinking
∗
...Uncertain)
LED display
H
1
P
H
2
P
H
3
P
H
4
P
H
5
P
H
6
P
H
7
P
1. Press the MODE button (BS1) once at Setting Mode 1 (H1P: off) and set
the MONITOR MODE (H1P: Blinking).
l h h h h h h
2.
Press the SET button (BS2) the number of
times until the LED display matches that at
right.
For checking the
number of outdoor units:
eight times
l h h k h h h
For checking the
number of indoor units:
five times
l h h h k h k
3. Press the RETURN button (BS3) and read the number of units from the
display of H2P through H7P.
[Reading Method]
The display of H2P through H7P should be read as a binary number,
with
l
standing for “1” and
h
standing for “0”.
l
∗ ∗ ∗ ∗ ∗ ∗
l h l h l l h
4. Press the MODE button (BS1) once. This returns to Setting Mode 1
(H1P: OFF, default).
h h k h h h h
Ex: For the LED display at right, this would be “0 1 0 1 1 0 ”,
which would mean 22 units are connected.
Note: “000000” indicates 64 units.
32 × 0 + 16 × 1 + 8 × 0 + 4 × 1 + 2 × 1 + 1 × 0 = 22 units